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| Tarkalson, D.D.; Kachman, S.D.; Knops, J.M.N.; Thies, J.E.; Wortmann, C.S.. |
| Results of a previous laboratory study indicated that six transgenic crops expressing the Cry1Ab insecticidal protein from Bacillus thuringiensis (Bt) decomposed at a slower rate than their respective non-Bt isolines. Consequently, litter decomposition rates, nitrogen cycling, and carbon pools may change in agricultural systems as the result of the widespread use of Bt crops. In this study, we assessed the decomposition rates and chemical composition of commonly grown hybrids of Bt and non-Bt isolines of corn (Zea mays L.) in the field. Leaves, stalks, and cobs from two Bt corn hybrids (Pioneer 34N44 Bt and NC+ 4990 Bt) and their non-Bt isolines (Pioneer 34N43 and NC+ 4880) were analyzed for biomass fractions (soluble, hemicellulose, cellulose, and lignin)... |
| Tipo: Article |
Palavras-chave: Nitrogen. |
| Ano: 2008 |
URL: http://eprints.nwisrl.ars.usda.gov/1273/1/1250.pdf |
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